Thanks for your reply,
The configuration I mentioned implies that each SCSI disk array would be in a new partition?
Regarding the size of the disk because it recognizes only 273GB
thanks
Luis
Date: Tue, 8 Sep 2009 12:54:13 -0700 From: centos@linuxpowered.net To: centos@centos.org Subject: Re: [CentOS] Support for add disk SCSI
Luis campo wrote:
Dear Sirs.
I appreciate your response.
Currently the server has set up a Raid-1 with 2 SCSI disks, it adds up to 6 SCSI disks with the following configuration:
Raid-1 (4 SCSI disks)
Raid-1 (2 SCSI disks)
Therefore will have 3 SCSI disk arrays.
The server is not configured with LVM.
CentOS 4.7 support this configuration?
Absolutely, if your doing it "online" you'll need to re-scan the scsi bus or manually add the new LUN/ID to the system, what I do is
- cat /proc/scsi/scsi
(take note of the ID string, e.g. Host: scsi0 Channel: 00 Id: 01 Lun: 01 )
If the RAID controller presents the new array as a new LUN then do something like:
echo "scsi add-single-device 0 0 1 2" /proc/scsi/scsi
Will tell the system to scan for LUN #2
If the controller presents the new array as another SCSI ID, then I would use "0 0 2 0" or perhaps 0 0 2 1 as the sequence.
Otherwise you can reboot and the system will detect it automatically.
As for the disk size thing, that is normal, the system is correctly detecting the size.
nate
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